中国原子能研究所多同位素紧凑型AMS系统

IF 1.4 3区物理与天体物理 Q3 INSTRUMENTS & INSTRUMENTATION

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms Pub Date : 2025-07-17 DOI:10.1016/j.nimb.2025.165803

Ming He, Yiwen Bao, Qingzhang Zhao, Wenhui Zhang, Kangning Li, Shengyong Su, Qubo You, Chaoxin Kan, Pan Hu

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引用次数: 0

摘要

中国原子能科学研究院（CIAE）根据能谱仪小型化的趋势，研制了一套用于14C、26Al、236U、239240 pu等多同位素能谱仪。利用这种自行研制的紧凑型能谱仪，建立了129I、236U和钚同位素的测量方法。该系统对129I的传输效率为46%，对锕系元素的传输效率为30%。129I的丰度灵敏度达到1.5 × 10−14,236U/238U的丰度灵敏度为<；2 × 10−14，对钚的检出限达到0.1 fg。

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A multi-isotope compact AMS system at China institute of atomic energy

Following the trend of AMS instrument miniaturization, a compact multi-isotope AMS system for ¹⁴C, ²⁶Al, ²³⁶U, ^239,240Pu etc. has been developed at China Institute of Atomic Energy (CIAE). Using this self-developed compact AMS, the measurement methods of ¹²⁹I, ²³⁶U, and plutonium isotopes have been established. This system achieves transmission efficiencies of 46 % for ¹²⁹I and 30 % for actinides. The abundance sensitivity for ¹²⁹I reaches 1.5 × 10⁻¹⁴, the abundance sensitivity for ²³⁶U/²³⁸U is < 2 × 10⁻¹⁴ and the detection limit for plutonium achieves 0.1 fg.

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来源期刊

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms 物理-核科学技术

CiteScore

2.80

自引率

7.70%

发文量

231

审稿时长

1.9 months

期刊介绍： Section B of Nuclear Instruments and Methods in Physics Research covers all aspects of the interaction of energetic beams with atoms, molecules and aggregate forms of matter. This includes ion beam analysis and ion beam modification of materials as well as basic data of importance for these studies. Topics of general interest include: atomic collisions in solids, particle channelling, all aspects of collision cascades, the modification of materials by energetic beams, ion implantation, irradiation - induced changes in materials, the physics and chemistry of beam interactions and the analysis of materials by all forms of energetic radiation. Modification by ion, laser and electron beams for the study of electronic materials, metals, ceramics, insulators, polymers and other important and new materials systems are included. Related studies, such as the application of ion beam analysis to biological, archaeological and geological samples as well as applications to solve problems in planetary science are also welcome. Energetic beams of interest include atomic and molecular ions, neutrons, positrons and muons, plasmas directed at surfaces, electron and photon beams, including laser treated surfaces and studies of solids by photon radiation from rotating anodes, synchrotrons, etc. In addition, the interaction between various forms of radiation and radiation-induced deposition processes are relevant.